单颗粒玉米秸成型燃料管式炉燃烧特性实验  

Experimental investigation of burning behavior of a single corn-stover pellet in a horizontal tube furnace

作　　者：张艳玲[1] 张政清[1] 李秀华 高振强[1] 孙鹏[1] 何芳[1] Zhang Yanling;Zhang Zhengqing;Li Xiuhua;Gao Zhenqiang;Sun Peng;He Fang(Shandong University of Technology,Institute of Traffic and Vehicle Engineering,Zibo 255049,China)

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255049

出　　处：《可再生能源》2018年第9期1278-1284,共7页Renewable Energy Resources

基　　金：国家自然科学基金资助项目(51676115)

摘　　要：为了设计和优化玉米秸成型颗粒燃烧机,在卧式管式炉中实验研究了燃烧条件(炉温、颗粒长度、空气流量)对单个玉米秸成型颗粒燃烧过程的影响。结果表明:炉温>700℃时,固体的熔融和烧结会阻碍燃烧过程;成型颗粒内部温度和炉温有一定的差别,各温度(500～900℃)下燃烧灰的水溶性较低,均<13%;成型颗粒长度(20～50 mm)、空气流量(150～550 L/h)对燃烧过程的影响很小;与木质颗粒相比,玉米秸成型颗粒热解强度低,燃烧时间更长。实验结果将为秸秆颗粒燃烧机的设计和优化提供参考。In order to design or optimization of combustors for corn-stover pellet, burning behavior of a single pellet of corn-stover in a horizontal tube furnace at different operational conditions were investigated experimentally. Results showed that： 1）Melting and sintering of solid at furnace temperature 700 ℃ hindered the burning process of corn-stover pellet. 2）Temperature inside pellet differed from that of environment and water solubilities of pellet ash at all temperatures（500 ～900 ℃）were low, less than 13%. 3）Effects of pellet length（20 ～50 mm）, air flowrate（150～550 L/h）on the burning behavior were ignorable. 4）Compared with wood pellet, the mass loss rate of corn-stover pellet was much smaller at pyrolysis stage and the burn out time was longer. Experiments can be used as a reference for the design and optimization of burner.

关 键 词：玉米秸 成型颗粒 燃烧特性 灰 管式炉 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.2[农业科学—农业机械化工程]